iBlacklist (or similar) for webOS?

sorry if there has already been a topic about this very issue, but I did a search and I did not find any recent ones.
I consider dumping my iPhone4 for the Pre3 and I know there is hardly anything I will miss when leaving the iOS family.
However, I do use the iBlacklist app a lot, which allows you to create Back- and Whitelists and block certain numbers and so on. A lot of you will know the app. Is there anything similar in functionality and accessibility for webOS?

Blocking numbers is amazing on webOS. Download preware and then download metaview's advanced patch and you can have a number blocked. You get options like go to voice mail direct or just hangup w no voicemail. It is sweet!